Fruits and seedsTonifyingLigustri Lucidi Fructus

Nu Zhen Zi (Privet Fruit)

Q: What is Nu Zhen Zi? Are Han Lian Cao and Gou Qi Zi the same?

Official Nu Zhen Zi (女贞子) is the dried ripe fruit of Ligustrum lucidum . The pharmacopoeial name is Ligustri Lucidi Fructus . Han Lian Cao (eclipta) is sweet-sour and cold: nourishes the Liver and Kidney, cools Blood and stops bleeding. Gou Qi Zi is sweet and neutral: nourishes the Liver and Kidney, boosts essence and brightens the eyes. Privet and eclipta appear together in Er Zhi Wan, but they are not the same. Write Nu Zhen Zi. Use caution in Spleen-Stomach vacuity cold.

Q: What are the TCM properties and traditional uses of Nu Zhen Zi?

According to the Chinese Pharmacopoeia, Nu Zhen Zi is sweet, bitter and cool , enters the Liver and Kidney channels, and acts to nourish the Liver and Kidney, brighten the eyes and blacken the hair . It is used for Liver-Kidney yin vacuity, dizziness and tinnitus, sore weak waist and knees, early graying of the beard and hair, dim vision, internal-heat wasting-thirst, and steaming bone with tidal fever. Sweet-bitter and cool, it suits yin vacuity with internal heat—not Spleen-Stomach vacuity cold or yang-vacuity diarrhea.

Q: What is the usual dosage? Can it be drunk daily as a hair tea?

The pharmacopoeial decoction dose is 6–12 g . It is not a four-season “privet hair tea.” Spleen-Stomach vacuity cold only loosens further as it cools. Early graying needs a practitioner to name a short course; it does not replace medical assessment.

Q: Which herbs is Nu Zhen Zi combined with? What are the representative formulas?

Liver-Kidney yin vacuity joins eclipta in Er Zhi Wan . Dim vision may join lycium and chrysanthemum after pattern differentiation. Write Nu Zhen Zi 6–12 g; do not replace cool supplementation with lycium fruit by equal weight.

Q: How do you choose and store Nu Zhen Zi?

Choose ovoid or kidney-shaped fruits, black-purple, wrinkled, light, a faint odor and a sweet, slightly bitter-astringent taste . Moldy, dirty or oil-poor lots are discarded. Store dry. Buy pharmacopoeial Nu Zhen Zi; do not replace nourishing the Liver and Kidney, brightening the eyes and blackening the hair with lycium fruit or mulberry fruit by equal weight.

A practical guide to Nu Zhen Zi: what it is, how Traditional Chinese Medicine uses it, the classical formulas it appears in, and who should be careful with it.

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Last reviewed Oct 13, 2026

Quick Facts

Latin Name	Ligustri Lucidi Fructus
Chinese Name & Pinyin	女貞子 · Nu Zhen Zi
Medicinal Part	Fruits and seeds
The herb	Nu Zhen Zi is the dried ripe fruit of Ligustrum lucidum. Gou Qi Zi, Mo Han Lian, and He Shou Wu are different official drugs.
Nature and channels	Sweet, bitter, cool. Enters the Liver and Kidney. Sweet bitter coolness nourishes Liver and Kidney, brightens the eyes, and darkens the hair.
Pharmacopoeia line	Nourishes the Liver and Kidney. Brightens the eyes and darkens the hair. Used for Liver–Kidney yin deficiency, dizziness and tinnitus, sore lumbar region and knees, early graying, dim vision, interior-heat wasting-thirst, and steaming-bone tidal heat.
Pattern cues	Dizziness and tinnitus. Sore lumbar region and knees. Early graying. Dim vision. Steaming bone. Red tongue with little fluid.
In this article	Nu Zhen Zi versus Gou Qi Zi, Mo Han Lian, and He Shou Wu. Its place in Er Zhi Wan. Why a weak spleen should skip it. Who should skip it.

What Is Nu Zhen Zi?

Nu Zhen Zi (女贞子; Nǚ Zhēn Zǐ; Latin: Ligustri Lucidi Fructus; English: glossy privet fruit) is the dried ripe fruit of Ligustrum lucidum Ait. In Chinese medicine it is a yin-nourishing herb. It is sweet, bitter, and cool, enters the Liver and Kidney channels, and its core actions are to nourish the Liver and Kidney, and to brighten the eyes and darken the hair. The teaching point is dizziness, sore lumbar region and knees, and early graying from Liver–Kidney yin deficiency. It is not Gou Qi Zi. Lycium fruit is sweet and neutral. It nourishes Liver and Kidney and boosts essence to brighten the eyes. It is not cool. It is not He Shou Wu. Processed fleeceflower is bitter, sweet, astringent, and slightly warm. It tonifies Liver and Kidney and darkens the hair, and long self-use has a reported liver-injury risk. Nu Zhen Zi is sweet, bitter, and cool. It clears while it tonifies. In Er Zhi Wan it sits with Mo Han Lian. A cold weak spleen and loose stools are a poor match. This is not a hair-darkening product claim.

It is used most often for three patterns:

Liver–Kidney yin deficiency — dizziness, tinnitus, sore lumbar region and knees
Early graying, dim vision — this needs pattern diagnosis
Steaming-bone tidal heat, interior-heat wasting-thirst — wasting-thirst needs a clinic

The usual decoction dose is 6–12 g. Sweet, bitter, and cool, it is not a daily “hair privet” to keep increasing. Tonifying when there is no yin deficiency obstructs the spleen and stomach.

When Liver and Kidney yin are deficient and deficiency heat arises, dizziness, sore lumbar region, and tidal heat are common. Nu Zhen Zi is sweet, bitter, and cool. It nourishes, clears, and brightens the eyes, which is why it appears in Er Zhi Wan. It cool-tonifies more than it warms. A cold abdomen and loose stools get worse if more tonification is added.

Nu Zhen Zi is not a catch-all vision or hair fruit. In a cold weak spleen, or when there is no yin deficiency, using it alone can cool and obstruct the spleen. Whether it belongs in Er Zhi Wan should be decided by a licensed Chinese medicine practitioner after pattern diagnosis.

Nu Zhen Zi: Materia Medica Profile

Identification & Quality Standard

Ligustri Lucidi Fructus

Botanical Origin

The dried mature fruit of Ligustrum lucidum Ait.(Oleaceae)

Production Regions

Primarily produced in the Chinese provinces of Zhejiang, Jiangsu, Hunan, Fujian, Guangxi, Jiangxi, Sichuan.

Quality Requirements

Superior medicinal material is large, full, black-purple.

Macroscopic Features

Oval, elliptical or kidney-shaped, 6~8.5mm long, 3.5~5.5mm diameter. Externally black-purple or grayish-black, wrinkled, base has stem scars or a persistent calyx and short stem. Light in weight. Exocarp is thin, mesocarp is relatively soft, easily peeled off, endocarp is woody, yellowish-brown, with longitudinal ridges, and one seed can be seen after being broken; kidney-shaped, purple-black, and oily. faintly odor, sweet, slightly bitter and astringent taste.

Authentic Regions and Quality Identification

Traditionally, high-quality Nu Zhen Zi (Glossy Privet Fruit) is sourced from regions like Zhejiang, Jiangsu, and Hunan.

Appearance: Premium dried fruits are oval or kidney-shaped, with a wrinkled, purplish-black or grayish-purple surface. The inside flesh is soft and brownish-yellow, holding two hard, kidney-shaped seeds.
Taste and Smell: It has a faint fragrance and a flavor that is mildly sweet, bitter, and astringent.
Raw vs. Processed: Raw pieces are usually grayish-black, while the wine-processed version is brownish-black with a faint hint of wine aroma.
Imitations: Be careful to distinguish it from similar purplish-black berries. Authentic Nu Zhen Zi has relatively thin flesh and hard seeds, whereas common substitutes often have much thicker flesh and differently shaped seeds.

Traditional Properties & Historical Lineage

Nature, Flavour & Channel Tropism

Sweet, Bitter; CoolLiverKidney

1. Historical Records

This herb has been highly praised throughout TCM history:

Shen Nong Ben Cao Jing (Divine Farmer's Materia Medica) listed it as a top-grade herb, noting its ability to nourish the internal organs and calm the spirit.
Ming Yi Bie Lu (Miscellaneous Records of Famous Physicians) stated that over time, it helps stop sweating, reduces swelling, and promotes a feeling of physical lightness.
Ben Cao Gang Mu (Compendium of Materia Medica) emphasized its anti-aging benefits, stating it strengthens the lower back and knees, darkens gray hair, and brightens the eyes.
De Pei Ben Cao (Materia Medica of Combinations) highlighted classic pairings: combining it with Sang Shen (Mulberry) powerfully tonifies the Liver and Kidneys, while pairing it with Han Lian Cao (Eclipta) is excellent for clearing internal heat caused by Yin deficiency.

2. Evolution of TCM Understanding

Over the centuries, TCM doctors have appreciated different aspects of Nu Zhen Zi (Glossy Privet Fruit).

Some value its gentle, long-term tonifying effects, perfect for slow, steady health maintenance.
Others focus on its ability to clear "empty heat"—making it great for relieving symptoms like afternoon hot flashes or night sweats.
It is particularly useful for people who have a "hot" constitution and cannot tolerate strong, warming tonics like ginseng.
Safety Note: Medical texts also clearly define its limits, noting that people with a weak, cold digestive system or those prone to diarrhea should avoid using it on its own.

Core Efficacies & Traditional Applications

Traditional Functions

Enriches liver and kidney, brighten eyes, blackens hair. Apply to vertigo and tinnitus, relative weakness in the loins and knees, early greying of beard and hair, darkened vision, inner heat and diabetes, bone steaming and hot flash.

1. Primary Direction: Tonifying Liver and Kidney

In Traditional Chinese Medicine (TCM), Nu Zhen Zi (Glossy Privet Fruit) is traditionally used to nourish Liver and Kidney Yin.

Common Applications: It is often utilized for signs of Yin deficiency, such as lower back and knee weakness, dizziness, tinnitus, premature graying of hair, and dry eyes.
Classic Pairings: It is frequently combined with Han Lian Cao (Eclipta) to create the famous formula Er Zhi Wan (Two Solstices Pill), which enhances the nourishing and heat-clearing effects. Paired with Gou Qi Zi (Goji Berry), it supports vision alongside tonification.
Caution: Those with a cold Spleen and Stomach (often experiencing loose stools) should avoid using it alone, as its cooling nature may worsen digestive discomfort.

2. Secondary Direction: Clearing Empty Heat

The herb is also valued for clearing "empty heat" generated by a lack of Yin fluids.

Common Applications: Used for symptoms like afternoon hot flashes, night sweats, heat in the palms and soles, and a dry mouth or throat.
Classic Pairings: It is often mixed with herbs like Di Gu Pi (Wolfberry Bark) or Sheng Di Huang (Raw Rehmannia) to boost its cooling and Yin-nourishing properties.
Caution: Individuals who are naturally prone to feeling cold or have Yang deficiency should avoid this, as clearing empty heat can further damage their Yang energy.

3. Common Single-Herb Pairing: Synergy

The most iconic pairing is Nu Zhen Zi (Glossy Privet Fruit) with Han Lian Cao (Eclipta).

The Synergy: Nu Zhen Zi focuses on tonifying Liver and Kidney Yin, while Han Lian Cao supports this action and adds a blood-cooling, bleeding-stopping effect. Together, they create a balanced approach for treating dizziness, premature graying, and night sweats caused by Yin deficiency. This combination should be used under professional guidance based on proper pattern diagnosis.

Modern Research

Modern research offers useful context, but Traditional Chinese Medicine prescribes on whole-pattern diagnosis rather than isolated compounds.

1. Main Chemical Components

Modern science has identified several compounds in the plant, including polysaccharides, oleanolic acid, ursolic acid, mannitol, and flavonoids. Lab tests indicate that these compounds can influence certain enzyme activities. In animal models, extracts have shown potential effects on immune function and liver metabolism. However, robust human clinical trials are still needed to confirm these benefits.

2. Modern Pharmacological Focus

Current laboratory research heavily focuses on the herb's polysaccharides and triterpenes. Early test-tube and animal studies suggest these components might help regulate immune cells and impact inflammation markers. There is also ongoing research into how it might support liver metabolism, though the exact mechanisms are still being explored.

3. Limitations of Modern Research

It is important to keep these modern findings in perspective:

Lab vs. Real Life: Results from test tubes or mice do not directly translate to human health. Individual differences and dosages change everything.
Extracts vs. Whole Herbs: Testing isolated chemicals or concentrated extracts is completely different from drinking a traditional brewed herbal tea.
Inconsistent Methods: Different studies use different dosages and extraction methods, making it impossible to set a standard human dose based purely on lab data.
The TCM Approach: The effectiveness of a TCM herb comes from the complex synergy of the whole plant, not just one single "active ingredient."

Comparing Similar Herbs

1. Common Ground

Both Nu Zhen Zi (Glossy Privet Fruit) and Mo Han Lian (Eclipta) share the core function of tonifying the Liver and Kidney. They are both traditionally used for dizziness and lower back weakness related to Yin deficiency, often appearing together in formulas like Er Zhi Wan. Both require caution for individuals with cold digestion.

2. Core Differences

Nature and Flavor: Nu Zhen Zi is neutral, sweet, and bitter, offering a mild and balanced action. Mo Han Lian is cold, sweet, and sour, making it more suitable for pronounced "heat" signs.
Efficacy Focus: Nu Zhen Zi focuses on a steady nourishment of Yin and clearing empty heat. Mo Han Lian leans towards cooling the blood and stopping bleeding.
Target Symptoms: Choose Nu Zhen Zi for Yin deficiency without severe heat (e.g., dry eyes, weak back). Choose Mo Han Lian when Yin deficiency is accompanied by heat or bleeding tendencies (e.g., bleeding gums, blood in stools).
Contraindications: While both require care with weak digestion, the colder nature of Mo Han Lian makes it much harsher on a cold Spleen, easily aggravating diarrhea.

3. Summary of Differences

In short, Nu Zhen Zi is a gentle, neutral tonic for Liver and Kidney Yin that manages mild empty heat. Mo Han Lian is a cooler tonic that specifically addresses blood cooling and bleeding. They are not entirely interchangeable.

Classical Formulas Containing Nu Zhen Zi

Er Zhi Wan

二至丸

Formula CategoryYin-Tonifying FormulasPrimary PatternKidney Yin DeficiencyPrimary FunctionEnrich Liver and Kidney Yin, darken hair, cool bloodRelated ConditionsDizziness & Vertigo

View Formula Profile Read Complete Guide

Formulas vs. Single Herbs

Synergy is Key: A formula is a balanced team. The healing power comes from how the herbs interact, so a single herb cannot simply replicate a full formula's effects.
Holistic Balance: The exact dosage and combination in a formula affect the entire body. Never try to mix or alter these formulas at home based on internet articles.

Diet & Daily Home Use

1. Home Recipes or Teas

A gentle, daily option is the Nu Zhen Zi and Gou Qi Zi Tea.

Ingredients: Nu Zhen Zi (3g), Gou Qi Zi (5g), and Chrysanthemum (2g).
Method: Rinse the ingredients, place them in a cup, and steep with boiling water for 10 minutes.
Best For: Mild dizziness, dry eyes, or a slightly sore lower back after staying up late (Yin deficiency without obvious heat).
Avoid If: You have a weak, cold stomach or frequent loose stools.
Frequency: Limit to 2–3 times a week; do not drink continuously for long periods.

2. Preparation and Brewing Differences

Raw vs. Processed: Raw Nu Zhen Zi is slightly cooler, making it better for clearing empty heat. The wine-processed version (Jiu Zhi) is milder and warmer, enhancing its tonifying effects while reducing its coldness.
Brewing: For home decoctions, no special steps (like pre-boiling or bagging) are required; it can be boiled directly with other herbs. Note that raw herbal dosages cannot be directly swapped with concentrated extract dosages.

3. Dosage and Cycle

Dosage: Clinical prescriptions usually range from 6 to 12 grams. For home dietary use, keep it much lower, around 3 to 5 grams.
Cycle: It is not recommended for long-term, uninterrupted use. A typical wellness cycle is 2 to 4 weeks. Once symptoms improve, pause usage or consult a practitioner to adjust the dose. Special populations (pregnant, nursing, children, or those with organ impairment) must consult a professional before use.

Contraindications & Safety Warnings

1. Who Should Avoid It?

Cold Spleen/Stomach: Those with chronic loose stools or bloating, as its cooling nature can worsen digestive yang deficiency.
Pregnancy & Nursing: Use with extreme caution, as safety data for these groups is insufficient.
Children & Elderly: Due to weaker physiological functions, professional guidance is strictly required.
Liver/Kidney Dysfunction: Avoid self-administration to prevent placing extra burden on compromised organs.
Allergies: Strictly forbidden for anyone allergic to plants in the Oleaceae family.

2. Drug Interactions and Dietary Notes

Medication Interactions: Nu Zhen Zi may interact with modern medications, including blood thinners, antihypertensives (blood pressure meds), diabetes medications, and sedatives. For instance, it may increase bleeding risks with anticoagulants or cause blood pressure to drop too low when combined with antihypertensives. Always consult your doctor or pharmacist if you are on chronic medication.
Dietary Combinations: While there are no strictly proven "toxic" food pairings, herbs can interact unexpectedly. Avoid mixing herbs and medications without professional advice.

3. Adverse Reactions and Overdose Risks

General Safety: It is generally safe when used at normal dosages.
Overdose Risks: Excessive consumption can lead to gastrointestinal distress, including stomach discomfort, bloating, and diarrhea.
Allergic Reactions: In rare cases, it may cause skin rashes or itching.
Action Plan: If you experience significant discomfort, allergic symptoms, continuous vomiting, breathing difficulties, or a sudden worsening of your condition, stop use immediately and seek medical attention. Do not attempt to manage severe reactions at home.

Frequently Asked Questions About Nu Zhen Zi

What is Nu Zhen Zi? Are Han Lian Cao and Gou Qi Zi the same?

Official Nu Zhen Zi (女贞子) is the dried ripe fruit of Ligustrum lucidum. The pharmacopoeial name is Ligustri Lucidi Fructus. Han Lian Cao (eclipta) is sweet-sour and cold: nourishes the Liver and Kidney, cools Blood and stops bleeding. Gou Qi Zi is sweet and neutral: nourishes the Liver and Kidney, boosts essence and brightens the eyes. Privet and eclipta appear together in Er Zhi Wan, but they are not the same. Write Nu Zhen Zi. Use caution in Spleen-Stomach vacuity cold.

What are the TCM properties and traditional uses of Nu Zhen Zi?

According to the Chinese Pharmacopoeia, Nu Zhen Zi is sweet, bitter and cool, enters the Liver and Kidney channels, and acts to nourish the Liver and Kidney, brighten the eyes and blacken the hair. It is used for Liver-Kidney yin vacuity, dizziness and tinnitus, sore weak waist and knees, early graying of the beard and hair, dim vision, internal-heat wasting-thirst, and steaming bone with tidal fever. Sweet-bitter and cool, it suits yin vacuity with internal heat—not Spleen-Stomach vacuity cold or yang-vacuity diarrhea.

How do you choose raw versus wine-processed fruit? Can Gou Qi Zi replace it?

Raw fruit is cool and moist and leans to clearing vacuity heat. Wine processing lessens cold slipperiness and helps the supplementing action, and is often used in pills. Lycium fruit is neutral and boosts essence; it cannot replace the cooling pair with eclipta by equal weight. Commercial privet tea is not equal-weight pieces.

What is the usual dosage? Can it be drunk daily as a hair tea?

The pharmacopoeial decoction dose is 6–12 g. It is not a four-season “privet hair tea.” Spleen-Stomach vacuity cold only loosens further as it cools. Early graying needs a practitioner to name a short course; it does not replace medical assessment.

What are the contraindications? Can it be used in pregnancy?

Use caution in Spleen-Stomach vacuity cold with diarrhea, and in yang vacuity. Pregnancy needs a practitioner’s assessment. Stop if diarrhea or cold epigastric pain appears. Tinnitus with sudden hearing loss needs medical care.

Can Nu Zhen Zi nourish the Liver and Kidney, brighten the eyes and blacken the hair?

It can help dizziness and early graying from Liver-Kidney yin vacuity. It joins eclipta in Er Zhi Wan. It nourishes the Liver and Kidney, brightens the eyes and blackens the hair—not a specific for every gray hair or every eye disease.

Can Nu Zhen Zi be drunk daily as a hair, eye or Kidney tea?

Liver-Kidney yin vacuity may enter a short formula; Spleen-Stomach vacuity cold only loosens further as it cools. “Privet must blacken the hair” does not replace medical assessment. Nourishing the Liver and Kidney, brightening the eyes and blackening the hair should name 6–12 g, raw or wine-processed.

How do you choose among Nu Zhen Zi, Han Lian Cao, Gou Qi Zi, Sang Shen and Shu Di Huang?

Privet fruit is sweet-bitter and cool: nourishes the Liver and Kidney, brightens the eyes and blackens the hair—yin vacuity with internal heat and early graying. Eclipta is sweet-sour and cold: nourishes the Liver and Kidney, cools Blood and stops bleeding—yin-vacuity bleeding. Lycium fruit is sweet and neutral: nourishes the Liver and Kidney, boosts essence and brightens the eyes—insufficiency of essence and Blood with dim vision. Mulberry fruit is sweet-sour and cold: nourishes yin, supplements Blood, generates fluid and moistens dryness—insufficiency of yin and Blood. Prepared rehmannia is sweet and slightly warm: supplements Blood, nourishes yin, boosts essence and fills marrow—Blood vacuity and essence depletion. Yin vacuity with internal heat favors Nu Zhen Zi (Er Zhi Wan); bleeding favors Han Lian Cao; essence depletion with dim vision favors Gou Qi Zi; fluid depletion favors Sang Shen; marked essence and Blood depletion favors Shu Di Huang. They may be paired after pattern differentiation; Spleen-Stomach vacuity cold forbids large Nu Zhen Zi and Han Lian Cao.

Which herbs is Nu Zhen Zi combined with? What are the representative formulas?

Liver-Kidney yin vacuity joins eclipta in Er Zhi Wan. Dim vision may join lycium and chrysanthemum after pattern differentiation. Write Nu Zhen Zi 6–12 g; do not replace cool supplementation with lycium fruit by equal weight.

How do you choose and store Nu Zhen Zi?

Choose ovoid or kidney-shaped fruits, black-purple, wrinkled, light, a faint odor and a sweet, slightly bitter-astringent taste. Moldy, dirty or oil-poor lots are discarded. Store dry. Buy pharmacopoeial Nu Zhen Zi; do not replace nourishing the Liver and Kidney, brightening the eyes and blackening the hair with lycium fruit or mulberry fruit by equal weight.

Related Products

Nong's Nu Zhen Zi (Privet Fruit) Single Herb 5:1 Concentrated Granules $49.11

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Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.